#ifndef USART_H
#define USART_H
#include "stm32f10x.h"
#include "system.h"
#include "systick.h"
#define USART1_REC_LEN		200 

extern u8  USART1_RX_BUF[USART1_REC_LEN]; //接收缓冲,最大USART_REC_LEN个字节.末字节为换行符 
extern u16 USART1_RX_STA;   

void USART1_Init(u32 bound);



#endif      